Cadmium-113

Properties and data of the isotope ¹¹³Cd.

Contents

General Data

Radioactive Decay

Parent Nuclides

NMR Data

Isotones und Isobares

See also: List of individual Cadmium isotopes (and general data sources).

General data

Name of the isotope:Cadmium-113; Cd-113Symbol:¹¹³Cd or 11348CdMass number A:113 (= number of nucleons)Atomic number Z:48 (= number of protons)Neutrons N:65Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.3541666666667 (= neutron-proton ratio)Neutron excess (N-Z):17Isotopic mass:112.904408(3) u (atomic weight of Cadmium-113)Nuclide mass:112.8780776 u (calculated nuclear mass without electrons)Mass excess:-89.04337 MeVMass defect:1.034413076 u (per nucleus)Nuclear binding energy:963.54957382 MeV (per nucleus)
8.52698738 MeV (average binding energy per nucleon)Separation energy:S_N = 6.53974(22) MeV (first neutron)
S_P = 9.7485(24) MeV (first proton)Half-life:8.04(5) × 10¹⁵ aDecay constant λ:2.733775237523 × 10^-24 s^-1Specific activity α:0.014699267464083 Bq g^-1
3.972774990292 × 10^-13 Ci g^-1Spin and parity:
(nuclear angular momentum)1/2+Magnetic dipole moment:μ(μ_N) = -0.6213(3)Charge radius:4.6012(28) femtometer fmYear of discovery:1925

Radioactive Decay

Half-life T_½ = 8.04(5) × 10¹⁵ a respectively 2.5354944 × 10²³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹³In	100 %	0.32383(26) MeV

Parent Nuclides

Direct parent isotope is: ¹¹³Ag.

Occurrence

Comparison of the natural Cadmium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

	Atomic Mass m_a	Quantity	Half-life	Spin
Cadmium Isotopic mixture	112.414 u	100 %
Isotope ¹⁰⁶Cd	105.906460(8) u	1.245(22) %	stable	0+
Isotope ¹⁰⁸Cd	107.904183(8) u	0.888(11) %	stable	0+
Isotope ¹¹⁰Cd	109.903007(4) u	12.470(61) %	stable	0+
Isotope ¹¹¹Cd	110.904183(4) u	12.795(12) %	stable	1/2+
Isotope ¹¹²Cd	111.902763(4) u	24.109(7) %	stable	0+
Isotope ¹¹³Cd	112.904408(3) u	12.227(7) %	8.04(5) × 10¹⁵ a	1/2+
Isotope ¹¹⁴Cd	113.903365(3) u	28.754(81) %	stable	0+
Isotope ¹¹⁶Cd	115.904763(2) u	7.512(54) %	3.3(4) × 10¹⁹ a	0+

NMR data

Nuclear magnetic properties and parameters of the NMR active Nuclide ¹¹³Cd

Isotope:¹¹³Cd-NMRQuantity:12.227(7) %Spin:1/2+Nuclearmagnetic moment
μ/μ_N:-0.6213(3)Gyromagnetic ratio γ:5.9609 · 10⁷ rad T^-1 s^-1
9.48707 MHz T^-1Nuclear g-factor:g_l = -1.2426Resonance frequency:v₀ = 9.4871 MHz at 1 TRelative Sensitivity:[related to ¹H = 1.000]:
0.01106 (H₀ = const.)
0.2228 (v₀ = const.)

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
^113mCd	263.54(3) keV	14.1(5) a	11/2-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 65) and isobaric (same nucleon number A = 113) with Cadmium-113. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 65	Isobar A = 113
36	¹⁰¹Kr
37	¹⁰²Rb
38	¹⁰³Sr
39	¹⁰⁴Y
40	¹⁰⁵Zr
41	¹⁰⁶Nb	¹¹³Nb
42	¹⁰⁷Mo	¹¹³Mo
43	¹⁰⁸Tc	¹¹³Tc
44	¹⁰⁹Ru	¹¹³Ru
45	¹¹⁰Rh	¹¹³Rh
46	¹¹¹Pd	¹¹³Pd
47	¹¹²Ag	¹¹³Ag
48	¹¹³Cd	¹¹³Cd
49	¹¹⁴In	¹¹³In
50	¹¹⁵Sn	¹¹³Sn
51	¹¹⁶Sb	¹¹³Sb
52	¹¹⁷Te	¹¹³Te
53	¹¹⁸I	¹¹³I
54	¹¹⁹Xe	¹¹³Xe
55	¹²⁰Cs	¹¹³Cs
56	¹²¹Ba
57	¹²²La
58	¹²³Ce
59	¹²⁴Pr
60	¹²⁵Nd
61	¹²⁶Pm